.entrance{
     background-image: url('./../../assets/登录.png');
     width: 100%;
     height: 100vh;
     background-repeat: no-repeat;
      
}
.loginIpt {
    position: fixed;
    top: 50%;
    left:50%;
    transform: translate(300px,-60%);
    width: 350px;
    height: 500px;
    box-shadow: 0 15px 30px  rgba(0, 0, 0, .4);
    padding: 10px;
}
.ipttitle {
    text-align: center;
    height: 80px;
    font-size: 20px;
    font-weight:600;
    line-height: 80px;
    color: #2B2B2B;
    margin: 30px 0 10px;
}